Modulo negative floats using "%" and gmp_mod does not work

Question

I try to get the result of -0.15 modulo 5 in PHP.
Following codes always return 0.

$mod = ((-0.15) % 5)
$mod = (-0.15 % 5)
$mod = gmp_mod("-0,15", "5");
$mod = gmp_mod(-0.15, 5);

When I type "-0.15 mod 5" into google, it returns: 4.85

What is wrong with the code I use in PHP?

possible duplicate of [PHP float modulus not working](http://stackoverflow.com/questions/23236851/php-float-modulus-not-working) — Some programmer dude, Jan 05 '15 at 08:30
Can http://stackoverflow.com/questions/4409281/how-is-13-64-13-in-php help you? — pavel, Jan 05 '15 at 08:30

score 0 · Answer 1 · answered Jan 05 '15 at 08:34

0

According to http://php.net/language.operators.arithmetic, "Operands of modulus are converted to integers (by stripping the decimal part) before processing."

So $mod = 0 % 5, which would be 0.

answered Jan 05 '15 at 08:34

malcanso

1 Answers1